CN111963219A - Large-diameter shield tunneling machine material hoisting system and hoisting method thereof - Google Patents
Large-diameter shield tunneling machine material hoisting system and hoisting method thereof Download PDFInfo
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- 230000032258 transport Effects 0.000 claims description 43
- 239000004519 grease Substances 0.000 claims description 21
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- 238000010276 construction Methods 0.000 abstract description 9
- 230000001360 synchronised effect Effects 0.000 abstract description 6
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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Abstract
The invention discloses a large-diameter shield tunneling machine material lifting system and a lifting method thereof, and solves the problems that in the prior art, a box culvert piece and duct piece lifting system is low in efficiency and has potential safety hazards. The invention comprises a single-segment crane, a double-segment crane and a box culvert crane which are arranged on the upper part of a trailer, wherein the double-segment crane and the box culvert crane are both positioned above the single-segment crane, and the single-segment crane, the double-segment crane and the box culvert crane are all connected with a background control system to form an interlocking control lifting appliance. The double-pipe-piece crane and the box culvert crane are two common rail cranes, are matched with a single-pipe-piece crane, form interlocking control in the hoisting process, can realize synchronous and efficient hoisting and assembly of pipe pieces, box culvert pieces and other materials in the construction process of a large-diameter shield tunnel, realize safety interlocking of the double-pipe-piece crane, the single-pipe-piece crane and the box culvert piece crane through an automatic sensing control system, and improve the hoisting efficiency and the hoisting safety factor.
Description
Technical Field
The invention relates to the technical field of diameter tunnel construction, in particular to a large-diameter shield tunneling machine material hoisting system and a hoisting method thereof.
Background
With the development of the construction technology of large-diameter shield (the diameter of a cutter head is larger than 10 m) in China, the engineering of a large-section highway tunnel with the diameter of more than 10m formed in one step and a river-crossing and sea-crossing tunnel is more and more. The shield tunnel is different from the conventional shield tunnel, synchronous splicing of the duct pieces and the box culvert pieces is required to be met, and the safety and the high efficiency of a hoisting system of the shield tunnel become the restriction factors of shield construction.
The existing shield construction material hoisting technology is mainly used for hoisting small-diameter pipe pieces, and deep research is lacked on the synchronous hoisting and assembling technology of box culvert pieces and pipe pieces. To the construction demand of synchronous handling, prior art is mostly two loop wheel machine systems, and not only inefficiency, the common rail operation of two loop wheel machines lacks interlocking control moreover, has very big potential safety hazard. Therefore, how to solve the problems of high efficiency and safety when box culvert pieces and pipe pieces are synchronously lifted is a problem to be considered by the technical personnel in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a large-diameter shield tunneling machine material lifting system and a lifting method thereof, and solves the problems that in the prior art, a box culvert piece and segment lifting system is low in efficiency and has potential safety hazards.
The technical scheme of the invention is realized as follows: the utility model provides a major diameter shield constructs quick-witted material handling system, is including setting up single section of jurisdiction loop wheel machine, double-barrelled section of jurisdiction loop wheel machine and box culvert loop wheel machine on trailer upper portion, and double-barrelled section of jurisdiction loop wheel machine and box culvert loop wheel machine all are located the top of single section of jurisdiction loop wheel machine, and single section of jurisdiction loop wheel machine, double-barrelled section of jurisdiction loop wheel machine and box culvert loop wheel machine all are connected with backstage control system and constitute the interlocking control hoist.
The trailer is provided with an upper moving slide rail and a lower moving slide rail which are arranged in parallel, the upper moving slide rail is positioned above the lower moving slide rail, the double-pipe-slice crane and the box culvert crane are arranged on the upper moving slide rail, and the single-pipe-slice crane is arranged on the lower moving slide rail.
The front part of the double-segment crane is provided with a double-tube front limit switch, the rear part of the double-tube front limit switch is provided with a double-tube rear bumper bar, and the middle section of the double-segment crane is provided with a blanking point inductive switch; the double-tube front limit switch corresponds to a front limit stop lever fixed on the trailer, and the blanking point inductive switch corresponds to a blanking point ram fixed on the trailer.
The front part of the box culvert crane is provided with a front limit switch of the box culvert crane, and the rear part of the box culvert crane is provided with a rear limit switch of the box culvert crane; the front limit switch of the box culvert crane corresponds to the rear bumper of the double pipe, and the rear limit switch of the box culvert crane corresponds to the rear limit stop lever of the box culvert crane fixed on the trailer.
The front part of the single-tube-piece crane is provided with a single-tube front limit switch, the rear part of the single-tube-piece crane is provided with a single-tube rear limit switch, the single-tube front limit switch corresponds to a single-tube front limit stop lever fixed on the trailer, and the single-tube rear limit switch corresponds to a single-tube rear limit stop lever arranged on the trailer.
The single-pipe-piece crane is provided with a wireless transmitting and receiving device, and the double-pipe front limit switch, the blanking point inductive switch, the box culvert crane front limit switch, the box culvert crane rear limit switch, the single-pipe front limit switch and the single-pipe rear limit switch are all connected with the background control system.
A hoisting method of a large-diameter shield tunneling machine material hoisting system comprises segment hoisting, box culvert piece hoisting and material hoisting; wherein, the segment lifting comprises the following steps:
s1: the segment transport vehicle transports the prefabricated segments to a double-segment hoisting area at the rear section of the shield, a double-segment clamp of a double-segment crane is lowered, two segments are fastened, the prefabricated segments move forwards to a blanking position at the middle section of the shield after rising to an upper limit position, and meanwhile, the single-segment crane is guaranteed to be positioned at the forefront part; then releasing the clamp by a double-segment crane, and placing the prefabricated segment on the bottom surface of the tunnel;
s2: the single segment crane moves backwards to a position above a blanking position of the middle segment of the shield, then a clamp is lowered, a prefabricated segment is clamped and lifted to an upper limit position, then the prefabricated segment moves forwards to a position above a blanking point of a segment trolley, after the single segment crane lowers the clamp to a safe height above the segment trolley, the clamp rotates for 90 degrees, and the prefabricated segment is adjusted to an assembling posture;
s3: after the prefabricated pipe piece is in the splicing posture, the single pipe piece crane continues to lower the clamp until the prefabricated pipe piece completely falls on the pipe piece trolley, then the clamp is released, and the pipe piece trolley transports the prefabricated pipe piece to the front splicing position;
the box culvert piece hoisting comprises the following steps:
b1: the box culvert piece transport vehicle transports the box culvert pieces to the hoisting position of the box culvert crane;
b2: the box culvert crane lowers the clamp and tightens the box culvert pieces, and after the box culvert crane lifts the clamp to the upper limit, the box culvert crane moves forwards to the assembly position of the box culvert in the middle section of the shield, and meanwhile, the safety distance between the box culvert crane and the double-pipe crane is ensured;
b3: then, after the box culvert crane transfers the clamp to the turnover height, the box culvert piece is turned over by 90 degrees in the air through the clamp to achieve the splicing posture;
b4: and slowly moving the box culvert crane backwards to align and assemble box culvert pieces and spliced box culvert paths.
The hoisting method of the large-diameter shield tunneling machine material hoisting system comprises the following steps:
a1: hoisting the grease barrel: the segment transport vehicle transports the grease barrel to the lifting position of the double-segment crane, the material hoist at the front part of the double-segment crane lifts the grease barrel, forwards transports the grease barrel to the blanking area of the middle segment of the shield, and puts down the grease barrel; then the single-pipe-slice crane moves backwards, a material hoist hook positioned in front of the crane is put down, and the grease bucket is lifted and transported to a front designated position;
a2: hoisting the cutter: the pipe piece transport vehicle transports the cutter to the hoisting position of the double-pipe-piece crane, the material hoist at the front part of the double-pipe-piece crane hoists the cutter, and the cutter is hoisted and transported to a front designated position;
a3: hoisting the rear trailer walking track panel: when the shield trailer advances a certain distance along with the integral tunneling of the shield and the trailer walking track needs to be extended, the box culvert transport vehicle transports the trailer rear walking track panel to the lifting position of the box culvert crane, and the material hoist at the front part of the box culvert crane lifts the trailer rear walking track panel and forwards transports the trailer rear walking track panel to the middle section of the shield to be directly spliced with the original track;
a4: hoisting the front trailer walking track panel: when the section of jurisdiction dolly is along with the whole tunnelling antedisplacement certain distance of shield, when needing to extend the anterior trailer walking track of shield of section of jurisdiction dolly bottom, anterior trailer walking section of track is hoisted to the anterior material calabash of single-pipe piece loop wheel machine to forward transportation is placed on the section of jurisdiction dolly, and the section of jurisdiction dolly transports anterior trailer walking section of track to the place ahead, and assemble with former track can.
Interlocking control exists among segment handling, box culvert piece handling and the material handling process, interlocking control includes following step:
firstly, before a double-pipe-piece crane lifts prefabricated pipe pieces to walk, a background control system controls a single-pipe-piece crane to move forwards to a limit position and controls a box culvert crane to move backwards to the limit position;
secondly, when the double-segment crane moves forwards to the middle section of the shield, a blanking point inductive switch of the double-segment crane is in contact with a blanking point impact rod, after a trigger signal is sent, the double-segment crane stops moving forwards, then a segment is placed downwards, and at the moment, the single-segment crane cannot move backwards;
and thirdly, in the forward movement process of the single-pipe-sheet crane for hoisting the prefabricated pipe sheet, after the clamp of the double-pipe-sheet crane is retracted to the highest position, the single-pipe-sheet crane moves backwards.
Fourthly, a double-pipe front limit switch of the double-pipe crane is in contact with the front limit stop lever, and after the switch is triggered and the double-pipe crane stops moving, the box culvert crane can move forwards to transport box culvert pieces;
fifthly, when the box culvert crane runs to the forefront, a certain safety distance is kept between the box culvert crane and the double-pipe crane, when a front limit switch of the box culvert crane is contacted with a ram at the rear part of the double pipes, the box culvert crane stops advancing after the switch is triggered, and the double-pipe crane does not move backwards;
sixthly, the clamp stably moves in the walking process of the single pipe crane, the double pipe crane and the box culvert crane without lifting and descending operations.
The double-pipe-piece crane and the box culvert crane are two common rail cranes, are matched with a single-pipe-piece crane, form interlocking control in the hoisting process, can realize synchronous and efficient hoisting and assembly of pipe pieces, box culvert pieces and other materials in the construction process of a large-diameter shield tunnel, realize safety interlocking of the double-pipe-piece crane, the single-pipe-piece crane and the box culvert piece crane through an automatic sensing control system, and improve the hoisting efficiency and the hoisting safety factor. The invention relates to a set of efficient and safe synchronous hoisting system for duct pieces, box culvert pieces and other materials, which solves the problems of material hoisting efficiency and safety in the shield tunnel construction process, and the application range of the invention is wider and wider along with more and more large-section tunnel projects, the construction efficiency is greatly improved, and the tunnel construction is safer.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the interlocking control of the single pipe-piece crane, the double pipe-piece crane and the box culvert crane of the present invention.
FIG. 3 is a schematic diagram of the double-pipe hoisting process of the present invention.
FIG. 4 is a schematic view of the single-pipe lifting process of the present invention.
Figure 5 is a schematic view of the box culvert lifting of the present invention.
FIG. 6 is a schematic view of the present invention.
FIG. 7 is a schematic diagram of the grease bucket handling of the present invention.
FIG. 8 is a schematic view of the rear trailer traveling track panel handling of the present invention.
Fig. 9 is a schematic view of the front trailer walking track panel lifting of the invention.
Fig. 10 is a partially enlarged view of a portion a in fig. 2.
Fig. 11 is a partial enlarged view of fig. 2 at B.
Fig. 12 is a partial enlarged view of fig. 2 at C.
Fig. 13 is an enlarged view of a portion of fig. 2 at D.
Fig. 14 is a partial enlarged view of fig. 2 at E.
Fig. 15 is an enlarged view of a portion F of fig. 2.
Fig. 16 is an enlarged view of a portion of fig. 2 at G.
Fig. 17 is a partial enlarged view at H in fig. 2.
Fig. 18 is an enlarged view of a portion J of fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Further, as shown in fig. 2, the trailer is provided with an upper moving slide rail 28 and a lower moving slide rail 29 which are arranged in parallel, the upper moving slide rail 28 is located above the lower moving slide rail 29, the double pipe crane 2 and the box culvert crane 5 are installed on the upper moving slide rail 28, that is, the double pipe crane 2 and the box culvert crane 5 are located at the same height, and the single pipe crane 1 is installed on the lower moving slide rail 29, so that the interference phenomenon cannot occur in the operation process of the three.
In embodiment 2, as shown in fig. 10 to 18, in a large-diameter shield tunneling machine material hoisting system, a double-tube front limit switch 15 is arranged at the front part of a double-tube piece hoisting machine 2, a double-tube rear ram 18 is arranged at the rear part of the double-tube piece hoisting machine, and a blanking point inductive switch 17 is arranged at the middle section of the double-tube piece hoisting machine; limit switch 15 is corresponding with the preceding spacing pin 16 of fixing on the trailer before double-barrelled, and when limit switch 15 collided shield preceding front segment of trailer spacing pin 16 before double-barrelled, double-barrelled piece loop wheel machine self control system control double-segment loop wheel machine went forward and stops, through the wireless transmitter in the control system simultaneously, to single-segment loop wheel machine and box culvert loop wheel machine transmission double-segment loop wheel machine preceding spacing signal, the box culvert loop wheel machine can walk the action this moment. The blanking point inductive switch 17 corresponds to the blanking point impact rod 19 fixed on the trailer, and when the blanking point inductive switch 17 collides with the blanking point impact rod 19 fixed at the designated position of the shield trailer, the self control system controls the crane to stop the blanking point, so that the double pipe pieces can be put down.
Further, a box culvert crane front limit switch 20 is arranged at the front part of the box culvert crane 5, and a box culvert crane rear limit switch 21 is arranged at the rear part of the box culvert crane; the front limit switch 20 of the box culvert crane corresponds to the double-pipe rear-part impact rod 18, the double-pipe rear-part impact rod 18 and the front limit switch 20 of the box culvert crane are double-pipe piece cranes and anti-collision interlocking devices of the box culvert crane, when the front and rear distances of the two cranes exceed the designed safety distance, the front limit switch 20 of the box culvert crane touches the double-pipe rear-part impact rod 18 to obtain a stop signal, and meanwhile, the stop signal is sent to the double-pipe piece cranes, so that the cranes in operation are guaranteed to stop advancing. The rear limit switch 21 of the box culvert crane corresponds to the rear limit stop lever 22 of the box culvert crane fixed on the trailer, and the rear limit switch 21 of the box culvert crane and the rear limit stop lever 22 of the box culvert crane are retreating stopping trigger devices of the box culvert crane. When the rear limit switch 21 of the box culvert crane retreats and touches the rear limit stop lever 22 of the box culvert crane, the box culvert crane stops retreating. The front part of the single-tube-piece crane 1 is provided with a single-tube front limit switch 23, the rear part of the single-tube-piece crane 1 is provided with a single-tube rear limit switch 26, the single-tube front limit switch 23 corresponds to a single-tube front limit stop lever 24 fixed on a trailer, and the single-tube front limit switch 23 and the single-tube front limit stop lever 24 are forward stop trigger devices of the single-tube-piece crane. When the single-pipe-piece crane moves forward to the foremost limit position, the single-pipe front limit switch 23 triggers the single-pipe front limit stop lever 24 fixed on the shield trailer, and the single-pipe-piece crane stops moving forward. Meanwhile, sending a single-segment front limiting stop signal to a double-segment crane and a box culvert crane. The single-tube rear limit switch 26 corresponds to a single-tube rear limit stop lever 25 arranged on the trailer, and the single-tube rear limit switch 26 and the single-tube rear limit stop lever 25 are single-tube crane retreating shutdown trigger devices. When the single-pipe-piece crane retreats to the rearmost limit position, the single-pipe-piece rear limit switch 26 triggers the single-pipe rear limit stop lever 25 fixed on the shield trailer, the single-pipe-piece crane stops retreating, and meanwhile, a single-pipe-piece rear limit stop signal is sent to the double-pipe-piece crane and the box culvert crane.
Furthermore, the single-tube-piece crane 1 is provided with a wireless transmitter-receiver 27, and the double-tube front limit switch 15, the blanking point inductive switch 17, the box culvert crane front limit switch 20, the box culvert crane rear limit switch 21, the single-tube front limit switch 23 and the single-tube rear limit switch 26 are all connected with a background control system. The wireless transmitting and receiving device is a walking position signal and lifting state information sharing device of a single-pipe crane, a double-pipe crane and a box culvert crane. The system transmits and receives the walking position signals of each crane through wireless transmitting and receiving devices arranged in the three crane control cabinets, and controls each crane to walk according to the set interlocking setting.
The other structure is the same as embodiment 1.
The interlocking setting is the guarantee of safe and efficient operation of the three sets of cranes, when the double-pipe-piece crane advances to the position of a blanking point, the single-pipe-piece crane must move forwards to a front limiting position, and the safety accident of the single-pipe-piece crane or the double-pipe-piece crane during blanking is avoided; when the double-segment crane must advance to the foremost limit position, the double-segment crane must be stopped, so that derailment accidents caused by continuous advancing are avoided; when the double-segment crane must advance to the foremost limiting and stopping position, the box culvert crane can only advance to travel, so that the cross operation of the double-segment crane and the box culvert crane is avoided; when the box culvert crane must advance to the rearmost limit position, the crane must be stopped, so that derailing accidents caused by continuous retreating are avoided; when the box culvert crane must advance to the rearmost limit stop position, the double-pipe crane can retreat to travel, so that the cross operation of the double-pipe crane and the box culvert crane is avoided; safe stopping distance is set at the rear part of the double-pipe-piece crane and the front part of the box culvert crane, collision between the double-pipe-piece crane and the box culvert crane when the double-pipe-piece crane retreats and the box culvert crane advances is avoided, and the hoisting safety factor is improved.
The hoisting method of the large-diameter shield tunneling machine material hoisting system comprises segment hoisting, box culvert hoisting and material hoisting; wherein, the segment lifting comprises the following steps:
s1: the segment transport vehicle 3 transports the prefabricated segments 4 to a double-segment hoisting area at the rear section of the shield, a double-segment clamp of the double-segment crane 2 is lowered, two segments are fastened, the prefabricated segments move forwards to a blanking position at the middle section of the shield after rising to an upper limit position, and meanwhile, the single-segment crane 1 is ensured to be positioned at the forefront part; then the double-segment crane 2 releases the clamp, and the prefabricated segment 4 is placed on the bottom surface of the tunnel (as shown in figure 3);
s2: the single-segment crane 1 moves backwards to a position above a blanking position of the middle segment of the shield, then a clamp is placed down, a prefabricated segment 4 is clamped and lifted to an upper limit position, then the prefabricated segment moves forwards to a position above a blanking point of the segment trolley 12, after the single-segment crane 1 places the clamp down to a safe height above the segment trolley 12, the clamp rotates for 90 degrees, and the prefabricated segment 4 is adjusted to an assembling posture (as shown in figure 4);
s3: after the prefabricated pipe pieces 4 are in the splicing posture, the single pipe piece crane 1 continues to lower the clamp until the prefabricated pipe pieces 4 completely fall on the pipe piece trolley, then the clamp is released, and the pipe piece trolley 12 transports the prefabricated pipe pieces 4 to the front splicing position (as shown in fig. 4);
the box culvert piece hoisting comprises the following steps:
b1: the box culvert piece transport vehicle 6 transports the box culvert pieces to the hoisting position of the box culvert crane 5;
b2: the box culvert crane 5 lowers the clamp and tightens the box culvert pieces 7, and after the box culvert crane 5 lifts the clamp to the upper limit, the box culvert moves forwards to the assembly position of the box culvert in the middle section of the shield, and meanwhile, the safety distance between the box culvert crane and the double-pipe piece crane 2 is ensured;
b3: then, after the box culvert crane 5 puts down the clamp to the turnover height, the box culvert piece is turned over by 90 degrees in the air through the clamp to achieve the splicing posture;
b4: the box culvert crane 5 slowly moves backwards to align and assemble the box culvert pieces 7 with the assembled box culvert paths 10 (as shown in figure 5).
The hoisting method of the large-diameter shield tunneling machine material hoisting system comprises the following steps:
a1: hoisting the grease barrel: the segment transport vehicle 3 transports the grease barrel 13 to the lifting position of the double-segment crane 2, the material hoist at the front part of the double-segment crane 2 lifts the grease barrel 13 and transports the grease barrel 13 forwards to the blanking area of the middle segment of the shield, and the grease barrel 13 is put down; then the single-segment crane 1 moves backwards, a material hoist hook positioned in the front of the crane is put down, and the grease bucket is lifted and transported to a front designated position (as shown in figure 6);
a2: hoisting the cutter: the pipe piece transport vehicle 3 transports the cutter 14 to the hoisting position of the double-pipe piece crane 2, the material hoist at the front part of the double-pipe piece crane 2 hoists the cutter 14, and the cutter 14 is hoisted and transported to a front designated position (as shown in fig. 7);
a3: hoisting the rear trailer walking track panel: when the shield trailer advances for a certain distance along with the integral tunneling of the shield and the trailer walking track needs to be extended, the box culvert transport vehicle 6 transports the trailer rear walking track panel 9 to the lifting position of the box culvert crane 5, and the material hoist in the front of the box culvert crane 5 lifts the trailer rear walking track panel 9 and forwards transports the same to the middle section of the shield to be directly spliced with the original track (as shown in figure 8);
a4: hoisting the front trailer walking track panel: when the segment trolley 12 advances for a certain distance along with the whole tunneling of the shield, and the front trailer walking track at the bottom of the segment trolley 12 needs to be extended, the front trailer walking track panel 11 is hoisted by the material hoist at the front part of the single segment crane 1 and is forwards transported and placed on the segment trolley 12, and the front trailer walking track panel 11 is transported to the front by the segment trolley 12 and is spliced with the original track (as shown in fig. 9).
Interlocking control exists among segment handling, box culvert piece handling and the material handling process, interlocking control includes following step:
firstly, before a double-segment crane 2 lifts and transports a prefabricated segment 4 to walk, a background control system controls a single-segment crane 1 to move forwards to a limit position, and controls a box culvert crane 5 to move backwards to the limit position;
secondly, when the double-segment crane 2 moves forwards to the middle section of the shield, a blanking point inductive switch 17 of the double-segment crane 2 is in contact with a blanking point impact rod 19, after a trigger signal, the double-segment crane 2 stops moving forwards, then a segment is placed downwards, and at the moment, the single-segment crane 1 cannot move backwards;
thirdly, in the process that the single-pipe-sheet crane 1 lifts the prefabricated pipe sheet 4 to move forwards, after the clamp of the double-pipe-sheet crane 2 is retracted to the highest position, the single-pipe-sheet crane 1 moves backwards.
Fourthly, a double-pipe front limit switch 15 of the double-pipe crane 2 is in contact with a front limit stop lever 16, and after the switch is triggered and the double-pipe crane 2 stops moving, the box culvert crane 5 can move forwards to transport the box culvert pieces 7;
fifthly, when the box culvert crane 5 runs to the forefront, a certain safety distance is kept between the box culvert crane 5 and the double-pipe piece crane 2, when a front limit switch 20 of the box culvert crane is contacted with a double-pipe rear collision rod 18, the box culvert crane 5 stops moving forwards after the switch is triggered, and the double-pipe piece crane 2 does not move backwards;
sixthly, the clamp stably moves in the walking process of the single pipe crane 1, the double pipe crane 2 and the box culvert crane 5 without lifting and descending operations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a major diameter shield constructs quick-witted material handling system which characterized in that: the device comprises a single-pipe-piece crane (1), a double-pipe-piece crane (2) and a box culvert crane (5) which are arranged on the upper portion of a trailer (8), wherein the double-pipe-piece crane (2) and the box culvert crane (5) are both positioned above the single-pipe-piece crane (1), and the single-pipe-piece crane (1), the double-pipe-piece crane (2) and the box culvert crane (5) are all connected with a background control system to form an interlocking control lifting appliance.
2. The large-diameter shield tunneling machine material lifting system according to claim 1, characterized in that: the trailer is provided with an upper moving slide rail (28) and a lower moving slide rail (29) which are arranged in parallel, the upper moving slide rail (28) is positioned above the lower moving slide rail (29), the double-pipe-piece crane (2) and the box culvert crane (5) are arranged on the upper moving slide rail (28), and the single-pipe-piece crane (1) is arranged on the lower moving slide rail (29).
3. The large-diameter shield tunneling machine material lifting system according to claim 1 or 2, characterized in that: the front part of the double-tube crane (2) is provided with a double-tube front limit switch (15), the rear part is provided with a double-tube rear bumper (18), and the middle section is provided with a blanking point inductive switch (17); the double-tube front limit switch (15) corresponds to a front limit stop lever (16) fixed on the trailer, and the blanking point inductive switch (17) corresponds to a blanking point impact lever (19) fixed on the trailer.
4. The large-diameter shield tunneling machine material lifting system according to claim 3, characterized in that: the front part of the box culvert crane (5) is provided with a front limit switch (20) of the box culvert crane, and the rear part of the box culvert crane is provided with a rear limit switch (21) of the box culvert crane; the front limit switch (20) of the box culvert crane corresponds to the rear bumper (18) of the double pipe, and the rear limit switch (21) of the box culvert crane corresponds to the rear limit stop lever (22) of the box culvert crane fixed on the trailer.
5. The large-diameter shield tunneling machine material lifting system according to claim 4, characterized in that: the front part of the single-tube-piece crane (1) is provided with a single-tube front limit switch (23), the rear part of the single-tube-piece crane is provided with a single-tube rear limit switch (26), the single-tube front limit switch (23) corresponds to a single-tube front limit stop lever (24) fixed on the trailer, and the single-tube rear limit switch (26) corresponds to a single-tube rear limit stop lever (25) arranged on the trailer.
6. The large-diameter shield tunneling machine material lifting system according to claim 5, characterized in that: the single-pipe-piece crane (1) is provided with a wireless transmitter-receiver (27), and a double-pipe front limit switch (15), a blanking point inductive switch (17), a box culvert crane front limit switch (20), a box culvert crane rear limit switch (21), a single-pipe front limit switch (23) and a single-pipe rear limit switch (26) are all connected with a background control system.
7. The hoisting method of the large-diameter shield tunneling machine material hoisting system according to claim 1, 5 or 6, is characterized in that: the method comprises the steps of segment hoisting, box culvert piece hoisting and material hoisting; wherein, the segment lifting comprises the following steps:
s1: the segment transport vehicle (3) transports the prefabricated segments (4) to a double-segment hoisting area at the rear section of the shield, double-segment clamps of the double-segment hoisting machine (2) are placed downwards, two segments are fastened, and the prefabricated segments move forwards to a blanking position at the middle section of the shield after rising to an upper limit position, and meanwhile, the single-segment hoisting machine (1) is ensured to be positioned at the forefront part; then the clamp is released by the double-segment crane (2), and the prefabricated segment (4) is placed on the bottom surface of the tunnel;
s2: the single-segment crane (1) moves backwards to a position above a blanking position of the middle section of the shield, then a clamp is placed down, a prefabricated segment (4) is clamped and lifted to an upper limit position, then the prefabricated segment moves forwards to a position above a blanking point of the segment trolley (12), after the clamp is placed down to a safe height above the segment trolley (12) by the single-segment crane (1), the clamp rotates for 90 degrees, and the prefabricated segment (4) is adjusted to be in an assembling posture;
s3: after the prefabricated pipe piece (4) is in the splicing posture, the single pipe piece crane (1) continues to lower the clamp until the prefabricated pipe piece (4) completely falls on the pipe piece trolley, then the clamp is released, and the pipe piece trolley (12) conveys the prefabricated pipe piece (4) to the front splicing position;
the box culvert piece hoisting comprises the following steps:
b1: the box culvert piece transport vehicle (6) transports the box culvert pieces to the hoisting position of the box culvert crane (5);
b2: the box culvert crane (5) lowers the clamp and tightens the box culvert pieces (7), and after the box culvert crane (5) lifts the clamp to the upper limit, the clamp moves forwards to the assembly position of the box culvert in the middle section of the shield, and meanwhile, the safety distance between the box culvert crane and the double-pipe piece crane (2) is ensured;
b3: then, after the box culvert crane (5) puts down the clamp to the turnover height, the box culvert piece is turned over by 90 degrees in the air through the clamp to achieve the splicing posture;
b4: the box culvert crane (5) slowly moves backwards to align and assemble the box culvert pieces (7) with the assembled box culvert roads (10).
8. The hoisting method of the large-diameter shield tunneling machine material hoisting system according to claim 7, characterized in that: the material lifting comprises the following steps:
a1: hoisting the grease barrel: the segment transport vehicle (3) transports the grease barrel (13) to the lifting position of the double-segment crane (2), the material hoist at the front part of the double-segment crane (2) lifts the grease barrel (13) and transports the grease barrel (13) forwards to the blanking area of the middle segment of the shield, and the grease barrel (13) is put down; then the single-pipe-slice crane (1) moves backwards, a material hoist hook positioned in the front of the crane is placed down, and the grease bucket is lifted and transported to a front designated position;
a2: hoisting the cutter: the pipe piece transport vehicle (3) transports the cutter (14) to the hoisting position of the double-pipe-piece crane (2), the material hoist at the front part of the double-pipe-piece crane (2) hoists the cutter (14), and the cutter (14) is hoisted and transported to a front designated position;
a3: hoisting the rear trailer walking track panel: when the shield trailer advances a certain distance along with the integral tunneling of the shield and the trailer walking track needs to be extended, the box culvert transport vehicle (6) transports the trailer rear walking track panel (9) to the hoisting position of the box culvert crane (5), and the material hoist at the front part of the box culvert crane (5) hoists the trailer rear walking track panel (9) and transports the same forwards to the middle section of the shield to be directly spliced with the original track;
a4: hoisting the front trailer walking track panel: when the segment trolley (12) advances a certain distance along with the whole tunneling of the shield, when the traveling track of the front trailer of the shield at the bottom of the segment trolley (12) needs to be extended, the front trailer traveling track panel (11) is hoisted by a material hoist at the front part of the single segment crane (1) and is placed on the segment trolley (12) in a forward transportation mode, and the front trailer traveling track panel (11) is transported to the front by the segment trolley (12) and is assembled with an original track.
9. The hoisting method of the large-diameter shield tunneling machine material hoisting system according to claim 7 or 8, wherein the hoisting method comprises the following steps: interlocking control exists among segment handling, box culvert piece handling and the material handling process, interlocking control includes following step:
firstly, before a double-pipe-piece crane (2) hoists the prefabricated pipe pieces (4) to walk, a background control system controls a single-pipe-piece crane (1) to move forwards to a limit position and controls a box culvert crane (5) to move backwards to the limit position;
secondly, when the double-segment crane (2) moves forwards to the middle section of the shield, a blanking point induction switch (17) of the double-segment crane (2) is in contact with a blanking point impact rod (19), after a trigger signal is sent, the double-segment crane (2) stops moving forwards, segments are placed downwards, and at the moment, the single-segment crane (1) cannot move backwards;
thirdly, in the forward movement process of the single-pipe-sheet crane (1) for hoisting the prefabricated pipe sheet (4), after the clamp of the double-pipe-sheet crane (2) is retracted to the highest position, the single-pipe-sheet crane (1) moves backwards;
fourthly, a double-pipe front limit switch (15) of the double-pipe crane (2) is in contact with a front limit stop lever (16), and after the switch is triggered, the double-pipe crane (2) stops moving, the box culvert crane (5) can move forwards to transport the box culvert parts (7);
fifthly, when the box culvert crane (5) runs to the forefront, a certain safety distance is kept between the box culvert crane and the double-pipe crane (2), when a front limit switch (20) of the box culvert crane is contacted with a double-pipe rear collision rod (18), the box culvert crane (5) stops advancing after the switch is triggered, and the double-pipe crane (2) does not move backwards;
sixthly, the clamp stably moves without lifting and descending in the walking process of the single pipe crane (1), the double pipe crane (2) and the box culvert crane (5).
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| CN112855183A (en) * | 2021-01-21 | 2021-05-28 | 中铁工程装备集团(天津)有限公司 | Large-diameter shield machine rear support suitable for asynchronously assembling box culvert |
| CN113479756A (en) * | 2021-07-05 | 2021-10-08 | 辽宁三三工业有限公司 | Shield constructs general loop wheel machine of section of jurisdiction and mortar jar of machine |
| CN114044440A (en) * | 2021-11-18 | 2022-02-15 | 中铁工程装备集团有限公司 | Direct duct piece lifting system and control method |
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| CN113479756B (en) * | 2021-07-05 | 2024-05-28 | 辽宁三三工业有限公司 | Segment and mortar tank universal crane of shield tunneling machine |
| CN114044440A (en) * | 2021-11-18 | 2022-02-15 | 中铁工程装备集团有限公司 | Direct duct piece lifting system and control method |
| CN114044440B (en) * | 2021-11-18 | 2024-04-05 | 中铁工程装备集团有限公司 | Direct type duct piece lifting system and control method |
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